Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	WI2680238
PWS Name	WAUKESHA WATER UTILITY
PWS Type	Community water system
Owner Type	Local government
Primary Source	Surface water purchased
Primacy Type	State
Is Wholesaler?	No
Population Served	70718
County Served	Waukesha

The tables below list all violations that the state reported to EPA for this water system. Health-based violations are listed first, followed by treatment technique, MRDL, monitoring, reporting, and other violations.

Health-based	Violations of maximum contaminant levels (MCLs) or maximum residual disinfectant levels (MRDLs), which specify the highest concentrations of contaminants or disinfectants, respectively, allowed in drinking water; or of treatment technique (TT) rules, which specify required processes intended to reduce the amounts of contaminants in drinking water. MCLs, MRDLs, and treatment technique rules are all health-based drinking water standards.
Maximum Contaminant Level or MCL	The highest level of a contaminant that is allowed in drinking water. MCLs are set as close to the MCLGs as feasible using the best available treatment technology.
Treatment Technique	A required process intended to reduce the level of a contaminant in drinking water.
Maximum residual disinfectant level or MRDL	The highest level of a disinfectant allowed in drinking water. There is convincing evidence that addition of a disinfectant is necessary for control of microbial contaminants.
Monitoring & reporting	Failure to conduct regular monitoring of drinking water quality, as required by SDWA, or to submit monitoring results in a timely fashion to the primacy agency or EPA.
Public notification & other	Failure to provide notification to the public as required by the Violations of Public Notification Rule and the Consumer Confidence Report Rule, and violations of other requirements such as those violations related to variances and exemptions.

Violations

Violation Category Code	Violation Type Description	Rule Name	Contaminant Name	Violation ID	Compliance Status Description	Compliance Period Begin Date	Compliance Period End Date	Is Health Based Ind
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	2401431	Returned to Compliance	01-OCT-2023	31-DEC-2023	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	2401432	Returned to Compliance	01-OCT-2023	31-DEC-2023	Yes
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	2401438	Open	29-SEP-2023	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	2401437	Open	29-SEP-2023	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	2401433	Returned to Compliance	20-SEP-2023	-	No
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	2301429	Returned to Compliance	01-JUL-2023	30-SEP-2023	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	2301428	Returned to Compliance	01-JUL-2023	30-SEP-2023	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	2301407	Returned to Compliance	01-APR-2023	30-JUN-2023	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	2301410	Returned to Compliance	01-APR-2023	30-JUN-2023	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	2301408	Returned to Compliance	01-APR-2023	30-JUN-2023	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	2301409	Returned to Compliance	01-APR-2023	30-JUN-2023	Yes
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	2301394	Returned to Compliance	06-MAR-2023	-	No
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	2301398	Returned to Compliance	01-JAN-2023	31-MAR-2023	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	2301399	Returned to Compliance	01-JAN-2023	31-MAR-2023	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	2301397	Returned to Compliance	01-JAN-2023	31-MAR-2023	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	2301388	Returned to Compliance	01-JAN-2023	31-MAR-2023	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	2301400	Returned to Compliance	01-JAN-2023	31-MAR-2023	Yes
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	2301403	Returned to Compliance	09-DEC-2022	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	2301387	Returned to Compliance	09-DEC-2022	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	2301384	Returned to Compliance	21-NOV-2022	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	2301386	Returned to Compliance	21-NOV-2022	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	2301382	Returned to Compliance	21-NOV-2022	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	2301385	Returned to Compliance	21-NOV-2022	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	2301383	Returned to Compliance	21-NOV-2022	-	No
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	2301406	Returned to Compliance	01-OCT-2022	31-DEC-2022	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	2301389	Returned to Compliance	01-OCT-2022	31-DEC-2022	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	2301401	Returned to Compliance	01-OCT-2022	31-DEC-2022	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	2301391	Returned to Compliance	01-OCT-2022	31-DEC-2022	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	2301402	Returned to Compliance	01-OCT-2022	31-DEC-2022	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	2301370	Returned to Compliance	01-JUL-2022	30-SEP-2022	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	2301379	Returned to Compliance	01-JUL-2022	30-SEP-2022	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	2301380	Returned to Compliance	01-JUL-2022	30-SEP-2022	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	2301378	Returned to Compliance	01-JUL-2022	30-SEP-2022	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	2301371	Returned to Compliance	01-JUL-2022	30-SEP-2022	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	2301381	Returned to Compliance	01-JUL-2022	30-SEP-2022	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	2201347	Returned to Compliance	01-APR-2022	30-JUN-2022	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	2201355	Returned to Compliance	01-APR-2022	30-JUN-2022	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	2201356	Returned to Compliance	01-APR-2022	30-JUN-2022	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	2201357	Returned to Compliance	01-APR-2022	30-JUN-2022	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	2201346	Returned to Compliance	01-APR-2022	30-JUN-2022	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	2201354	Returned to Compliance	01-APR-2022	30-JUN-2022	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	2201350	Returned to Compliance	01-JAN-2022	31-MAR-2022	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	2201345	Returned to Compliance	01-JAN-2022	31-MAR-2022	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	2201344	Returned to Compliance	01-JAN-2022	31-MAR-2022	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	2201352	Returned to Compliance	01-JAN-2022	31-MAR-2022	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	2201351	Returned to Compliance	01-JAN-2022	31-MAR-2022	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	2201353	Returned to Compliance	01-JAN-2022	31-MAR-2022	Yes
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	2201289	Returned to Compliance	21-DEC-2021	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	2201281	Returned to Compliance	21-DEC-2021	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	2201288	Returned to Compliance	21-DEC-2021	-	No

1 - 50 of 381

Enforcement Actions

Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
2407282	0900277	SF%	State Civil Case concluded	29-FEB-2024	State	-
2407283	0900279	SF%	State Civil Case concluded	29-FEB-2024	State	-
2407284	0900286	SF%	State Civil Case concluded	29-FEB-2024	State	-
2407285	0900287	SF%	State Civil Case concluded	29-FEB-2024	State	-
2407286	0900288	SF%	State Civil Case concluded	29-FEB-2024	State	-
2407288	0900289	SF%	State Civil Case concluded	29-FEB-2024	State	-
2407296	1000295	SF%	State Civil Case concluded	29-FEB-2024	State	-
2407290	1000297	SF%	State Civil Case concluded	29-FEB-2024	State	-
2407298	1000299	SF%	State Civil Case concluded	29-FEB-2024	State	-
2407292	1000301	SF%	State Civil Case concluded	29-FEB-2024	State	-
2407294	1000303	SF%	State Civil Case concluded	29-FEB-2024	State	-
2407299	1000305	SF%	State Civil Case concluded	29-FEB-2024	State	-
2407303	1000309	SF%	State Civil Case concluded	29-FEB-2024	State	-
2407301	1000311	SF%	State Civil Case concluded	29-FEB-2024	State	-
2407304	1000313	SF%	State Civil Case concluded	29-FEB-2024	State	-
2407313	1000319	SF%	State Civil Case concluded	29-FEB-2024	State	-
2407306	1000321	SF%	State Civil Case concluded	29-FEB-2024	State	-
2407310	1000323	SF%	State Civil Case concluded	29-FEB-2024	State	-
2407308	1000325	SF%	State Civil Case concluded	29-FEB-2024	State	-
2407315	1000327	SF%	State Civil Case concluded	29-FEB-2024	State	-
2407312	1000329	SF%	State Civil Case concluded	29-FEB-2024	State	-
2407319	1000330	SF%	State Civil Case concluded	29-FEB-2024	State	-
2407317	1000331	SF%	State Civil Case concluded	29-FEB-2024	State	-
2407318	1000333	SF%	State Civil Case concluded	29-FEB-2024	State	-
2407324	1100334	SF%	State Civil Case concluded	29-FEB-2024	State	-
2407323	1100336	SF%	State Civil Case concluded	29-FEB-2024	State	-
2407326	1100337	SF%	State Civil Case concluded	29-FEB-2024	State	-
2407321	1100339	SF%	State Civil Case concluded	29-FEB-2024	State	-
2407325	1100342	SF%	State Civil Case concluded	29-FEB-2024	State	-
2407327	1100349	SF%	State Civil Case concluded	29-FEB-2024	State	-
2407328	1100398	SF%	State Civil Case concluded	29-FEB-2024	State	-
2407333	1100399	SF%	State Civil Case concluded	29-FEB-2024	State	-
2407331	1100401	SF%	State Civil Case concluded	29-FEB-2024	State	-
2407335	1100403	SF%	State Civil Case concluded	29-FEB-2024	State	-
2407337	1100406	SF%	State Civil Case concluded	29-FEB-2024	State	-
2407329	1100407	SF%	State Civil Case concluded	29-FEB-2024	State	-
2407332	1100408	SF%	State Civil Case concluded	29-FEB-2024	State	-
2407338	1100410	SF%	State Civil Case concluded	29-FEB-2024	State	-
2407340	1100412	SF%	State Civil Case concluded	29-FEB-2024	State	-
2407342	1100414	SF%	State Civil Case concluded	29-FEB-2024	State	-
2407343	1200415	SF%	State Civil Case concluded	29-FEB-2024	State	-
2407345	1200417	SF%	State Civil Case concluded	29-FEB-2024	State	-
2407347	1200419	SF%	State Civil Case concluded	29-FEB-2024	State	-
2407349	1200429	SF%	State Civil Case concluded	29-FEB-2024	State	-
2407350	1200430	SF%	State Civil Case concluded	29-FEB-2024	State	-
2407352	1200440	SF%	State Civil Case concluded	29-FEB-2024	State	-
2407353	1200441	SF%	State Civil Case concluded	29-FEB-2024	State	-
2407355	1200443	SF%	State Civil Case concluded	29-FEB-2024	State	-
2407356	1200444	SF%	State Civil Case concluded	29-FEB-2024	State	-
2407357	1200445	SF%	State Civil Case concluded	29-FEB-2024	State	-

1 - 50 of 379

All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
200	200	Yes	Consecutive Connection	Surface water	Permanent	Active
BH428	99	Yes	Well	Ground water	Permanent	Inactive
BH430	4	Yes	Well	Ground water	Permanent	Inactive
EQ944	2	Yes	Well	Ground water	Permanent	Inactive
BH427	1	Yes	Well	Ground water	Permanent	Inactive
BH435	9	Yes	Well	Ground water	Emergency	Active
BH434	8	Yes	Well	Ground water	Emergency	Active
BH433	7	Yes	Well	Ground water	Emergency	Active
BH432	6	Yes	Well	Ground water	Emergency	Active
BH431	5	Yes	Well	Ground water	Emergency	Active
BH429	3	Yes	Well	Ground water	Emergency	Active
WK947	13	Yes	Well	Ground water	Emergency	Active
RL256	12	Yes	Well	Ground water	Emergency	Active
RL255	11	Yes	Well	Ground water	Emergency	Active
BH436	10	Yes	Well	Ground water	Emergency	Active
26802380	26802380	No	Distribution System/Zone	-	-	Active
100	100	No	Other	-	-	Active
100	100T	No	Treatment Plant	-	-	Inactive
BH436	10T	No	Treatment Plant	-	-	Inactive
RL255	11T	No	Treatment Plant	-	-	Inactive
RL256	12T	No	Treatment Plant	-	-	Inactive
WK947	13T	No	Treatment Plant	-	-	Inactive
EQ944	2T	No	Treatment Plant	-	-	Inactive
BH429	3T	No	Treatment Plant	-	-	Inactive
BH431	5T	No	Treatment Plant	-	-	Inactive
BH432	6T	No	Treatment Plant	-	-	Inactive
BH433	7T	No	Treatment Plant	-	-	Inactive
BH434	8T	No	Treatment Plant	-	-	Inactive
BH435	9T	No	Treatment Plant	-	-	Inactive

1 - 29 of 29

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
100	100T	Innovative	Other
BH436	10T	Filtration, Pressure Sand	Iron removal
BH436	10T	Filtration, Pressure Sand	Radionuclides removal
BH436	10T	Fluoridation	Other
BH436	10T	Hypochlorination, Post	Disinfection
BH436	10T	Permanganate	Iron removal
RL255	11T	Fluoridation	Other
RL255	11T	Hypochlorination, Post	Disinfection
RL256	12T	Fluoridation	Other
RL256	12T	Hypochlorination, Post	Disinfection
WK947	13T	Fluoridation	Other
WK947	13T	Hypochlorination, Post	Disinfection
WK947	13T	Sequestration	Iron removal
EQ944	2T	Fluoridation	Other
EQ944	2T	Hypochlorination, Post	Disinfection
EQ944	2T	Sequestration	Iron removal
BH429	3T	Filtration, Pressure Sand	Iron removal
BH429	3T	Filtration, Pressure Sand	Radionuclides removal
BH429	3T	Fluoridation	Other
BH429	3T	Hypochlorination, Post	Disinfection
BH429	3T	Permanganate	Iron removal
BH429	3T	Sequestration	Iron removal
BH431	5T	Fluoridation	Other
BH431	5T	Hypochlorination, Post	Disinfection
BH431	5T	Sequestration	Iron removal
BH432	6T	Fluoridation	Other
BH432	6T	Hypochlorination, Post	Disinfection
BH432	6T	Sequestration	Iron removal
BH433	7T	Fluoridation	Other
BH433	7T	Hypochlorination, Post	Disinfection
BH433	7T	Sequestration	Iron removal
BH434	8T	Filtration, Pressure Sand	Radionuclides removal
BH434	8T	Fluoridation	Other
BH434	8T	Hypochlorination, Post	Disinfection
BH434	8T	Permanganate	Iron removal
BH434	8T	Sequestration	Iron removal
BH435	9T	Hypochlorination, Post	Disinfection
BH435	9T	Sequestration	Iron removal

1 - 38 of 38

For more information on a Water System:
Ask the operators of your water system, contact your primacy agency or file a Freedom of Information Act (FOIA) request.
Drinking water in general: Find out more about your drinking water web site or call the Safe Drinking Water Hotline (1-800-426-4791). EPA has also prepared a table about various regulated drinking water contaminants.
Tools for accessing EPA drinking water data: Safe Drinking Water Information System (SDWIS) Federal Reporting Services and Drinking Water Performance and Results Report.
Research Data: As well as monitoring the levels of drinking water contaminants for which EPA has set standards, EPA, states, and water systems also carry out studies of contaminants that may need to be regulated in the future. For more information about these contaminants, please see the National Contaminant Occurrence Database.

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